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@toolsnap/financial-calculator-formulas

v1.0.0

Published

Common financial calculation formulas: mortgage, ROI, loan payment, compound interest, inflation adjustment.

Vulnerabilities

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Links

Git

Maintainers

lwhittmylwhittmy

Keywords

calculatormortgageroiloanfinancecompound-interestinflation

Readme

@toolsnap/financial-calculator-formulas

Pure JavaScript financial calculation formulas for mortgage, ROI, compound interest, and inflation.

Installation

npm install @toolsnap/financial-calculator-formulas

Usage

const { mortgagePayment, returnOnInvestment } = require('@toolsnap/financial-calculator-formulas');

// $300k mortgage at 6.5% for 30 years
const mortgage = mortgagePayment(300000, 0.065, 30);
console.log(mortgage);
// { monthly: 1896.2, totalInterest: 382633.8, totalPaid: 682633.8 }

// ROI on $10k investment that grew to $15k in 3 years
const roi = returnOnInvestment(10000, 15000, 3);
console.log(roi);
// { roi: 50, annualized: 14.47, profit: 5000 }

Included Functions

  • mortgagePayment(principal, rate, years) — Monthly payment, total interest, total paid
  • returnOnInvestment(initial, final, years) — ROI %, annualized return, profit
  • compoundInterest(principal, rate, years, n) — Future value with compounding
  • inflationAdjust(amount, rate, years) — Real value after inflation

About

For interactive online calculators with more features, visit RiseTop — 100+ free tools, no signup required.

License

MIT